Ralf ·
Could gold fossils exist?
Yes! Gold fossils could exist — but it depends on what you mean by a “gold fossil.” Some versions are scientifically plausible, while others would be extremely unlikely.
Pyritized Pleuroceras Ammonite
– Past & Present Science and Nature Store
1. Fossils that look like gold — absolutely possible
Fossils can be coated or replaced by minerals such as pyrite, nicknamed fool’s gold. It can preserve the shape of ancient shells or other organisms, giving them a brilliant metallic, golden appearance.
Or Natif - Encyclopédie
2. Real gold surrounding a fossil — possible
Gold-bearing fluids can deposit natural gold in cracks and cavities in rocks. In principle, gold could form around an existing fossil or fill spaces within it, preserving some of its shape.
3. A fossil made entirely of gold — theoretically possible, but extraordinarily unlikely
For this to happen, gold would need to replace the original biological material while retaining its structure. Gold is chemically unreactive under many natural conditions, so the usual processes that fossilize organisms would not readily produce a solid-gold fossil.
Ralf ·
And made of copper?
Absolutely! Copper fossils are much more plausible than fossils made entirely of diamond. 🟠 Copper is a reactive metal, and copper minerals can form around fossils or replace parts of them under the right geological conditions.
1. Fossils coated in copper minerals — possible
Copper-bearing water can deposit minerals such as malachite and azurite around fossils. The result could be a fossil with vivid green or blue colors.
2. Fossils surrounded by actual metallic copper — possible
Native copper occurs naturally in Earth's crust. In suitable geological conditions, copper can accumulate in cracks and cavities in rocks, potentially surrounding or filling spaces in an existing fossil.
3. A fossil replaced entirely by metallic copper — theoretically possible, but very unusual
Copper minerals can replace biological material during fossilization. However, producing a fossil made entirely of elemental copper, rather than copper compounds, would require unusual chemical conditions.
